SE7611815L - Forfarande for framstellning av ferromagnetisk kromdioxid - Google Patents

Forfarande for framstellning av ferromagnetisk kromdioxid

Info

Publication number
SE7611815L
SE7611815L SE7611815A SE7611815A SE7611815L SE 7611815 L SE7611815 L SE 7611815L SE 7611815 A SE7611815 A SE 7611815A SE 7611815 A SE7611815 A SE 7611815A SE 7611815 L SE7611815 L SE 7611815L
Authority
SE
Sweden
Prior art keywords
procedure
production
ferromagnetic
chrome dioxide
dioxide
Prior art date
Application number
SE7611815A
Other languages
English (en)
Inventor
G Basile
A Mazza
Original Assignee
Montedison Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Montedison Spa filed Critical Montedison Spa
Publication of SE7611815L publication Critical patent/SE7611815L/sv

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62Record carriers characterised by the selection of the material
    • G11B5/68Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70626Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
    • G11B5/70636CrO2
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00Compounds of chromium
    • C01G37/02Oxides or hydrates thereof
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00Compounds of chromium
    • C01G37/02Oxides or hydrates thereof
    • C01G37/027Chromium dioxide
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/42Magnetic properties
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/60Optical properties, e.g. expressed in CIELAB-values
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/80Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Magnetic Record Carriers (AREA)
  • Chemical Treatment Of Metals (AREA)
SE7611815A 1975-10-31 1976-10-25 Forfarande for framstellning av ferromagnetisk kromdioxid SE7611815L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT28915/75A IT1045191B (it) 1975-10-31 1975-10-31 Procedimento per la produzione di biossido di cromo ferromagnetico

Publications (1)

Publication Number Publication Date
SE7611815L true SE7611815L (sv) 1977-05-01

Family

ID=11224583

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7611815A SE7611815L (sv) 1975-10-31 1976-10-25 Forfarande for framstellning av ferromagnetisk kromdioxid

Country Status (17)

Country Link
JP (1) JPS5274597A (sv)
AT (1) AT356062B (sv)
AU (1) AU502999B2 (sv)
BE (1) BE847812A (sv)
BR (1) BR7607234A (sv)
CA (1) CA1090555A (sv)
CH (1) CH625193A5 (sv)
CS (1) CS207373B2 (sv)
DD (1) DD127640A5 (sv)
DE (1) DE2648305C3 (sv)
DK (1) DK481376A (sv)
ES (1) ES452891A1 (sv)
FR (1) FR2329594A1 (sv)
GB (1) GB1524576A (sv)
IT (1) IT1045191B (sv)
NL (1) NL7611785A (sv)
SE (1) SE7611815L (sv)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4524008A (en) * 1983-12-16 1985-06-18 E. I. Du Pont De Nemours And Company Controlled initiation chromium dioxide synthesis
DE3728453A1 (de) * 1987-08-26 1989-03-09 Basf Ag Verfahren zur herstellung von modifiziertem, ferromagnetischem chromdioxid
DE3837646A1 (de) * 1988-11-05 1990-05-10 Basf Ag Nadelfoermiges, im wesentlichen aus chromdioxid bestehendes, ferromagnetisches material
DE4339841A1 (de) * 1993-11-23 1995-05-24 Basf Magnetics Gmbh Feinteiliges nadfelförmiges magnetisches modifiziertes Chromdioxid

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885365A (en) * 1956-10-22 1959-05-05 Du Pont Ruthenium-modified chromium oxide ferromagnetic compositions, their pre-aration and use
DE1467238A1 (sv) * 1963-07-24 1969-01-23
US3278263A (en) * 1964-11-27 1966-10-11 Du Pont Ferromagnetic chromium dioxide and preparation thereof
CH468923A (de) * 1967-07-21 1969-02-28 Ferag Ag Transporteinrichtung für in einer Schuppenformation anfallende flächenhafte Gebilde
DE1802469A1 (de) * 1968-10-11 1971-10-28 Bayer Ag Verfahren zur Herstellung von ferromagnetischem Chromdioxid
DE1922409A1 (de) * 1969-05-02 1970-11-12 Bayer Ag Verfahren zur Herstellung von ferromagnetischem Chromdioxid
DE2022820C3 (de) * 1970-05-11 1980-01-03 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von hochkoerzitivem Chromdioxid
AU452489B2 (en) * 1971-03-04 1974-08-16 Montecatini Edisons. P. A Process for preparing ferromagnetic chromium dioxide
JPS497198A (sv) * 1972-05-12 1974-01-22
IT956230B (it) * 1972-04-22 1973-10-10 Montedison Spa Composizione di biossido di cromo ferromagnetico modificato e p oces so di preparazione

Also Published As

Publication number Publication date
CS207373B2 (en) 1981-07-31
AU502999B2 (en) 1979-08-16
CA1090555A (en) 1980-12-02
AU1911876A (en) 1978-05-04
NL7611785A (nl) 1977-05-03
ATA800476A (de) 1979-09-15
JPS5274597A (en) 1977-06-22
BE847812A (fr) 1977-04-29
DK481376A (da) 1977-05-01
DE2648305B2 (de) 1980-07-03
FR2329594A1 (fr) 1977-05-27
DE2648305A1 (de) 1977-05-12
IT1045191B (it) 1980-05-10
BR7607234A (pt) 1977-09-13
CH625193A5 (en) 1981-09-15
AT356062B (de) 1980-04-10
DD127640A5 (sv) 1977-10-05
FR2329594B1 (sv) 1981-07-31
GB1524576A (en) 1978-09-13
JPS5722893B2 (sv) 1982-05-15
DE2648305C3 (de) 1982-11-25
ES452891A1 (es) 1977-10-16

Similar Documents

Publication Publication Date Title
SE7807571L (sv) Forfarande for framstellning av antigraviditetsvaccin
SE419502B (sv) Forfarande for framstellning av ishockeyklubbor
SE7600909L (sv) Forfarande for framstellning av livsmedel
SE420354B (sv) Forfarande for teknisk framstellning av forbeskiktade objektplattor
DK554179A (da) Fremgangsmaade til fremstilling af ergolinderivater
SE7613628L (sv) Forfarande for framstellning av aromatiska uretaner
PL191647A1 (pl) Sposob wytwarzania pochodnych tienopirydyny
NO774495L (no) Fremgangsmaate for fremstilling av klordioksyd
SE7700337L (sv) Forfarande for framstellning av beleggningar
SE7610423L (sv) Forfarande for framstellning av beleggningar
SE7703628L (sv) Forfarande for framstellning av resoler
SE406243B (sv) Forfarande for framstellning av ferromagnetisk kromdioxid
SE7611815L (sv) Forfarande for framstellning av ferromagnetisk kromdioxid
IT957902B (it) Procedimento per produre biossido di cromo ferromagnetico
SE7602124L (sv) Forfarande for framstellning av klordioxid
SE7601462L (sv) Forfarande for framstellning av kiselstal med hog permeabilitet
IT1121684B (it) Isossazoli e procedimento per la loro produzione
SE406927B (sv) Forfarande for framstellning av kromgultpigment
SE7605753L (sv) Forfarande for framstellning av urandioxid
RO68209A (ro) Procedeu pentru prepararea unor arilalchilaminoalchilftalimidine
IT1076817B (it) Procedimento per la produzione di biossido di cormo cro 2
GB1548670A (en) Pricess for the production of 2-amino-3-hydroxypyridines
TR19809A (tr) Haloasilamitlerin ueretilmesine mahsus usul
PL190303A1 (pl) Sposob wytwarzania nowych enamin
SE428691B (sv) Nytt forfarande for framstellning av cefalosporiner